5545644 has 48 divisors (see below), whose sum is σ = 14676480. Its totient is φ = 1615680.

The previous prime is 5545643. The next prime is 5545649. The reversal of 5545644 is 4465455.

It is not an unprimeable number, because it can be changed into a prime (5545643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2029 + ... + 3899.

It is an arithmetic number, because the mean of its divisors is an integer number (305760).

Almost surely, 2^5545644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5545644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7338240).

5545644 is an abundant number, since it is smaller than the sum of its proper divisors (9130836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5545644 is a wasteful number, since it uses less digits than its factorization.

5545644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910 (or 1908 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

The square root of 5545644 is about 2354.9191068909. The cubic root of 5545644 is about 177.0043728372.

The spelling of 5545644 in words is "five million, five hundred forty-five thousand, six hundred forty-four".